Sofa-bedstead



IUNITED STATES PATENT ommen.`

CHARLES F. MARTINE, or BOSTON, MASSACHUSETTS.

i SOFA-BEDSTEAD.

Specification forming' part of Letters Patent No. 11,0243, dated June 6, 1854; Reissued December 25, 1855, No. 336.

specification and the accompanying draw' ings, letters, igures, and references thereof.

Of the said drawings Figure l, represents a side elevation and Fig. 2, a top view of my improved sofa bedstead as it appears when folded together in the form of a sofa.

I Fig. 3 is a rear elevation'of it, and Fig. 4,

yversa, as occasion may require.

is a transverse and central section of it. Fig. 5, is a top view of it as it appears when unfolded or reduced to the form of a bedstead. Fig. 6 is a transverse Section of the same, and Fig. 7, isa longitudinal Section exhibiting the foot-board or arm as turned downward, the said section being taken through the machinery by which said footboard or arm is maintained in an inclined position.

In the drawings abo-ve mentioned, A, represents the main frame or base of the sofa; it having a frame or back, B, applied to one side of it by means of hinges so as to be capable of being turned from an upright down into a horizontal position, or vice The said two frames, A, and, B, are provided with a spring bed or mattress C, arranged upon them as `seen in the drawings.

To the middle of the covering, a, of the mattress a seriesof cords, 5,1), o, is aflixed, each cord being attached thereto by one of its ends. The opposite end of each of the cords is aiiixed to the end of a long windlass, D, which is applied to the under side of the frame A, and at or near the rear edge of the same as seen in the drawings; the journals, c, c, of said windlass being supported by and so as to revolve in stationary bearing plates, E, E, affixed to the underside of the frame, A.

There is a pinion gear, F, affixed to one end of the windlass barrel, D, and there is a sectional gear Gr affixed to the back frame, B, and made to engage with the pinion gear and so arranged, that while the back B, is being turned from an upright down into a horizontal position it, (the said sectional gear) shall producea revolution or rotation of the pinion gear and of course the windlassbarrel andthereby unwind the cords from the windlass barrel so as to permit the Sacking or covering, a, to be thrown upward along itsmddle, such `elevation of it being effected by t-he Vextension of the springs, d, l,ycZ, of said sacking.` When the back, B, is elevated into an uprightV position the windl'ass will be put in rotation in an opposite direction so as to draw the sacking toward the vertex of the angle of the back and seat and thus cause the spring mattress to have the appearance of two spring cush ions applied to the back and the seat as in the common sofa bedstead.

When there is a spring mattress or cushion applied to the back and oneto the seat of the sofa so that they shall be separate one from another, there will always be a joint or space between them when they are extended horizontally which will be productive of more or less inconvenience to a person `when reposing onthe bed, and it is the object of my invention to dispense with such oint and its inconveniences. v I construct each of the arms H, I-I, of the seat or base frame in two parts, e, f, asl seen in the drawings, the inner part being fastened to the base, A, while the two parts, e, f, are hinged together at their rear ends so as to enable the part, f, to be turned around through a semicircle and into line with the part, e, as seen in Fig. 5, the hinges being seen in said ligure and also in Fig. 8, which is an end view of t-he bedstead when in an unfolded state.

In order to support therear part of the back, B, when said back is turned down into a horizontal position, there may be applied to said back a leg, I, which may be hinged to it so as to be capable of being turned into the position as seen in Fig. 6, or into that denoted in the `rear elevation of the bedstead as seen in Fig. 3.

The part, o, of one of the arms I-I, may be so hinged to the base, A, as to be capable of being turned from an upright down into an inclined position and there may be applied to such part a sectional or toothed gear h, while a spring click or retaining pawl, z', may be applied to the base, A, and made to work into the teeth of the gear, a-and so as to hold the arm, e, in any inclined position in which it may be placed. From said pawl, a cord or wire 7c, should extend upward so as to be conveniently reached by a person and to enable him to lift the pawl out of engagement with the ratchet gear. Then the part, e, of the arm, H, is thus depressed the part, f', connected wit-h it will be similarly turned down, it being made to rest at its lower edge on the back, B.

By such means, the bedstead may be eX- tended lengthwise, the bolster and pillows being placed if desirable to do so on the arm so` turned downward.

When the back is elevated into an upright position it may be maintained thereat by means of screws, s, s, passed through it and screwed into the parts, H, H.

Having thus described my improved sofa bedstead, what I claim therein is as follows:

I claim the windlass barrel and its working gears or their mechanical equivalents, and the co-rds of said windlass barrel in combination with the seat, A, the back, B, and "a single spring mattress as applied thereto, the whole being applied together and made to operate substantially in the manner as hereinbefore specified.

In testimony whereof I have hereunto set my signature this sixteenth day of January A. D. 1854.

CHAS. F. MARTINE.

Vtnesses:

R H. EDDY, F. P. HALE, Jr.

[Fins/r PRINTED i 1913.] 

